Error in is.infinite when dealing with NULLs in list cols

[MilesMcBain]

Edge case arose from jsonlite::fromJSON:

library(tibble)
paint::paint(tibble(
    col1 = c(1,2,3),
    col2 = list(NULL, NULL, list(arg = "text"))
  ))
#> Error in is.infinite(x): default method not implemented for type 'list'

^{Created on 2022-08-24 with reprex v2.0.2}